Competition between Pi-coupling and FFLO modulation in SF/SF atomic thickness bilayers

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dc.creatorTollis, S.
dc.creatorCayssol, J.
dc.creatorBuzdin, A.
dc.date2005-09-23
dc.date.accessioned2026-07-07T06:18:46Z
dc.date.available2026-07-07T06:18:46Z
dc.descriptionWe present the detailed theoretical study of a heterostructure comprising of two coupled ferromagnetic superconducting layers. Our model may be also applicable to the layered superconductors with alternating interlayer coupling in a parallel magnetic field. It is demonstrated that such systems exhibit a competition between the nonuniform Larkin-Ovchinnikov-Fulde-Ferrel (FFLO) state and the superconducting state where the sign of the superconducting order parameter is opposite in adjacent layers. We determine the complete temperature-field phase diagram both in the cases of low and strong interlayer coupling. In the former we obtain a new Pi-phase inserted within the FFLO phase and located close to the usual tricritical point, whereas in the latter the bilayer in the state reveals a very high paramagnetic limit and the phenomenon of field-induced superconductivity.
dc.description30 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0509599
dc.identifierhttp://arxiv.org/abs/cond-mat/0509599
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/94849
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleCompetition between Pi-coupling and FFLO modulation in SF/SF atomic thickness bilayers
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